Originally, this module was designed for MTK6589 devices which lack custom ROMs built from source due to MediaTek closed-source policy. Later on, it was adjusted to support other (non-MTK) devices running vanilla or close-to-vanilla AOSP ROMs.

IntroductionThe app utilizes amazing Xposed framework coded by recognizeddeveloper rovo89 which, briefly, provides interface for injecting code into any app, including system services allowing modifications of applications and system services at run-time. One of the biggest advantages of GravityBox is that it is not bound to any specific device. Actually, it should run on any device having vanilla Android 4.4 (ROM close enough to AOSP).This project wouldn’t be possible without rovo’s Xposed framework, so huge kudos to him.